My pharmacist recommended phenergen for travel sickness for my ds, 3.7yrs,. It says to take 5ml the night before the journey. This may be repeated after 6-8 hours if necessary. My ds sleeps 10-12 hours at night, so does that mean i would need to give him another dose in the morning, and would that not make him drowsy? The journey is only 1 hour away , but he is very bad at travelling and i don't want him to be drowsy when we reach our destination.
Thanks in advance for any replies.